140323968 has 128 divisors (see below), whose sum is σ = 436152000. Its totient is φ = 44292096.

The previous prime is 140323961. The next prime is 140323991. The reversal of 140323968 is 869323041.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140323961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64596 + ... + 66732.

Almost surely, 2^140323968 is an apocalyptic number.

140323968 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140323968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218076000).

140323968 is an abundant number, since it is smaller than the sum of its proper divisors (295828032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140323968 is a wasteful number, since it uses less digits than its factorization.

140323968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2179 (or 2161 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 140323968 is about 11845.8418020840. The cubic root of 140323968 is about 519.6496259052.

The spelling of 140323968 in words is "one hundred forty million, three hundred twenty-three thousand, nine hundred sixty-eight".